I was interesting in seeing how many people who have been in a dominant position in a game of civ only to lose to a backdoor AI victory because they weren't paying proper attention. I'll start the ball rolling. I was playing a HoF space game which usually involves rushing a bunch of civs and leaving just a couple of tradepartners alive to help backfil the techs. So there I was with most of the available land to myself, Mansa and Gandhi backed into a corner with different religions. I had both at a level where they would trade me the techs I needed and everything was on track for one of my quickest finishes ever. Mansa and I are Jewish, Gandhi is Buddhist. Of course Gandhi builds the AP first just to annoy me but I'm not fussed, I rarely pay attention to religion other than as a relationship modifier. The AP vote for leader comes up and naturally Gandhi is the only candidate. A few turns later the first resolution comes up "Diplomatic Victory" At this point I'm vaguely aware of religious victory as something that apparently happens in other peoples games but I control 80% of the old world landmass on a terra map, have a huge techlead and over a dozen very productive cities with more being settled at that very moment. I'm about to hit two consecutive MoM fueled goldens ages (48 turns of GA!) from the coloseum event and the Taj Mahal with a GProph ready to fire off a third if I feel I need it at at that point. Next turn I get the message "Gandhi has won a diplomatic victory". Apparently Mansa voted for Gandhi at pleased despite sharing different religions. I'm left scratching my head and looking like an idiot. Grats Gandhi!